基于蒙特卡罗方法的航天器再生式水资源流转模拟

Simulation of Renewable Water Resources Circulation in Spacecraft Based on Monte Carlo Method

物化再生技术能够及时有效的处理航天员在飞行器中长期驻留所产生的废水,转化为可使用的再生水,为航天飞行任务提供持续、可循环利用的水资源。航天器水资源的流转模型可以对上行的相关物资进行精准的规划,或预测后续任务中的水资源流转情况。水资源流转涉及到复杂的人体代谢,也要考虑各类水资源的使用逻辑、相关设备的功能和效率,从原理角度建模非常困难。本文分析了水资源流转的各个环节,通过实际观测数据来对关键环节的水资源流转节律进行评估,通过蒙特卡罗方法对水资源流转情况进行建模,并将模型预测结果与实际情况进行对比,该模型能够有效的模拟航天器水资源的流转情况。

Technology of physical/chemical regeneration can timely and effectively dispose of the wastewater generated by astronauts during mid-and-long term live in the spacecraft, provide sustainable and recyclable water resources for the space mission. The model of water resources circulation can make the plan of related upload supplies more accurate, or predict the water resource circulation in the subsequent missions. Water resources circulation involves complex human metabolism, it also needs to consider the use logic of various water resources and the function/efficiency of relevant equipment,so it is very difficult to simulate from theory. This paper analyzes each link of water resources circulation, and evaluates the rhythm of water resources circulation in key links through actual observation data, compare the prediction of the model with the actual data, this model can effectively simulate the circulation of water resources in the spacecraft.